1# closedir.m4 serial 5
2dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_CLOSEDIR],
8[
9  AC_REQUIRE([gl_DIRENT_H_DEFAULTS])
10
11  AC_CHECK_FUNCS([closedir])
12  if test $ac_cv_func_closedir = no; then
13    HAVE_CLOSEDIR=0
14  fi
15  dnl Replace closedir() for supporting the gnulib-defined fchdir() function,
16  dnl to keep fchdir's bookkeeping up-to-date.
17  m4_ifdef([gl_FUNC_FCHDIR], [
18    gl_TEST_FCHDIR
19    if test $HAVE_FCHDIR = 0; then
20      if test $HAVE_CLOSEDIR = 1; then
21        REPLACE_CLOSEDIR=1
22      fi
23    fi
24  ])
25  dnl Replace closedir() for supporting the gnulib-defined dirfd() function.
26  case $host_os,$HAVE_CLOSEDIR in
27    os2*,1)
28      REPLACE_CLOSEDIR=1;;
29  esac
30])
31